EASA Regulations for CFM International LEAP-1C

21 airworthiness directives and regulations affecting CFM International LEAP-1C.

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New ADs and bulletins for CFM International LEAP-1C, summarized like the ones below, every Monday.

EASA SIB 2025-06R1

Oct 1, 2026

Potential Risk Management Issue after Engine Load Reduction Device Activation

EASA Safety Information Bulletin 2025-06R1 is an updated advisory addressing potential risk management issues following activation of the Load Reduction Device (LRD) on CFM International LEAP engines powering Boeing 737 Max and Airbus A320 NEO family aircraft. The bulletin highlights incidents where LRD activation after bird strikes caused oil leakage into the Environmental Control System (ECS), resulting in smoke in the cabin and flight deck. It provides information on the nature of the hazard, affected aircraft systems, and interim mitigation measures.

Safety Information Bulletin
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • CFM International LEAP-1A23
  • CFM International LEAP-1A24
  • CFM International LEAP-1A24E1
  • CFM International LEAP-1A26
  • CFM International LEAP-1A26CJ
  • CFM International LEAP-1A26E1
  • CFM International LEAP-1A29
  • CFM International LEAP-1A29CJ
  • CFM International LEAP-1A30
  • CFM International LEAP-1A32
  • CFM International LEAP-1A32X
  • CFM International LEAP-1A33
  • CFM International LEAP-1A33B2
  • CFM International LEAP-1A33B2X
  • CFM International LEAP-1A33X
  • CFM International LEAP-1A35A
  • CFM International LEAP-1A35AX
  • CFM International LEAP-1B
  • CFM International LEAP-1B21
  • CFM International LEAP-1B23
  • CFM International LEAP-1B25
  • CFM International LEAP-1B27
  • CFM International LEAP-1B28
  • CFM International LEAP-1B28B1
  • CFM International LEAP-1B28B2
  • CFM International LEAP-1B28B2C
  • CFM International LEAP-1B28B3
  • CFM International LEAP-1B28BBJ1
  • CFM International LEAP-1B28BBJ2
  • Boeing 737 Max
  • Airbus A320 NEO

EASA AD 2025-0171R2

Jul 3, 2026

Engine – High Pressure Turbine Rotor Stage 1 Blade – Inspection

EASA Airworthiness Directive 2025-0171R2 is an updated regulatory requirement addressing inspections of high pressure turbine (HPT) rotor stage 1 blades on CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. The directive mandates repetitive borescope inspections of specific affected turbine blades to detect cracks and prevent potential in-flight engine failures. It applies to multiple LEAP-1A engine variants and specifies affected part numbers for inspection and corrective actions.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA PAD 26-006

Jan 16, 2026

Engine — Full Authority Digital Electronic Control Software — Replacement

EASA Airworthiness Directive 26-006 is a proposed directive addressing CFM International LEAP-1A engines installed on Airbus A319, A320, and A321 aircraft. It mandates modifications to the Full Authority Digital Electronic Control (FADEC) software, Pressure Sub System (PSS), and engine wiring harness to prevent engine thrust issues during takeoff. The directive applies to all serial numbers of specified LEAP-1A engine models.

Proposed AD
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA AD 2025-0246

Oct 30, 2025

Engine — Non-Synchronous Vibration During Engine Operation — Monitoring / Replacement

EASA Airworthiness Directive 2025-0246 is issued for CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. It addresses non-synchronous vibration issues caused by affected bearing No. 3 spring finger housing parts, which may lead to engine stalls or turbine failures. The directive mandates monitoring and replacement of these parts to ensure continued airworthiness.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA AD 2025-0243

Oct 28, 2025

Engine — Forward Outer Seal, High-Pressure Compressor Stages 6-10 Compressor Rotor Spools and High-Pressure Turbine Rotor Stage 1 Disks — Replacement

EASA Airworthiness Directive 2025-0243 is an official regulatory document addressing the replacement of forward outer seals, high-pressure compressor stages 6-10 compressor rotor spools, and high-pressure turbine rotor stage 1 disks on CFM International LEAP-1A engines. These engines are commonly installed on Airbus A319, A320, and A321 aircraft. The directive mandates inspection and replacement of affected parts to ensure continued airworthiness and safety.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA AD 2025-0171R1

Aug 15, 2025

Engine — High Pressure Turbine Rotor Stage 1 Blade — Inspection

The document titled 'Engine — High Pressure Turbine Rotor Stage 1 Blade — Inspection' is a regulatory directive concerning the inspection requirements for the high pressure turbine rotor stage 1 blades on CFM INTERNATIONAL LEAP-1A and LEAP-1C engines. It addresses specific inspection protocols to ensure the integrity and safety of these critical engine components. The directive applies to operators and maintenance organizations managing aircraft equipped with these engine models.

Airworthiness DirectiveSuperseded
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA SIB 2025-06

Jul 18, 2025

Potential Risk Management Issue after Engine Load Reduction Device Activation

EASA Safety Information Bulletin 2025-06 is an informational document addressing a potential risk management issue related to the activation of the Load Reduction Device (LRD) on CFM International LEAP engines installed on Boeing 737 Max and Airbus A320 NEO family aeroplanes. The bulletin highlights incidents involving smoke contamination in the flight deck and cabin following LRD activation after engine bird strikes on Boeing 737 Max aircraft powered by CFM LEAP-1B engines. It provides details on the hazards, affected systems, and operational considerations for these aircraft types.

Safety Information BulletinSuperseded
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • CFM International LEAP-1B

EASA AD 2025-0007

Jan 9, 2025

Engine — High-Pressure Turbine — Rotor Interstage Seal — Replacement

The document titled 'Engine — High-Pressure Turbine — Rotor Interstage Seal — Replacement' addresses maintenance requirements for the CFM INTERNATIONAL LEAP-1A and LEAP-1C engine models. It provides instructions related to the replacement of the rotor interstage seal in the high-pressure turbine section of these engines. This document is intended to ensure continued airworthiness and safe operation of aircraft powered by these engines.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA AD 2025-0003

Jan 7, 2025

Engine — Low Pressure Turbine — Stage 4 and Stage 5 Disks — Replacement

EASA Airworthiness Directive 2025-0003 is an airworthiness directive addressing the replacement of Low Pressure Turbine Stage 4 and Stage 5 disks on CFM International LEAP-1A, LEAP-1B, and LEAP-1C engines. These engines are installed on aircraft including Airbus A319, A320, A321, Boeing 737-8, 737-8200, 737-9, and COMAC C919. The directive identifies specific affected disk part numbers and serial numbers requiring replacement to ensure continued airworthiness.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • CFM International LEAP-1B

EASA AD 2024-0175

Nov 28, 2024

[Correction] Engine — Fuel Nozzle — Replacement

EASA Airworthiness Directive 2024-0175 is a corrective directive addressing the replacement of fuel injection nozzles on CFM International LEAP-1A32 engines installed on specific Airbus A321-251NX aircraft. The directive targets fuel nozzles with part numbers 2085M31G02, 2085M31G03, and 2085M31G05 due to accelerated coking issues. This AD mandates timely replacement to maintain engine performance and safety.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA AD 2024-0225

Nov 26, 2024

Engine – Forward Outer Seal, High-Pressure Compressor Stages 6-10 Compressor Rotor Spools and High-Pressure Turbine Rotor Stage 1 Disks – Replacement

EASA Airworthiness Directive 2024-0225 is an airworthiness directive addressing certain CFM International LEAP-1A engine models installed on Airbus A319, A320, and A321 aircraft. It mandates the replacement of forward outer seals, high-pressure compressor stages 6-10 compressor rotor spools, and high-pressure turbine rotor stage 1 disks that are affected by manufacturing defects. The directive aims to ensure continued airworthiness and prevent potential engine part failures.

Airworthiness DirectiveSuperseded
  • CFM International LEAP-1A
  • CFM International LEAP-1C

EASA AD 2024-0093

Apr 22, 2024

Engine — Non-Synchronous Vibration During Engine Operation — Monitoring

EASA Airworthiness Directive 2024-0093 addresses non-synchronous vibration (NSV) issues during operation of CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. The directive targets specific affected parts, notably bearing No. 3 spring finger housings with certain part numbers and serial numbers, to ensure ongoing engine safety and airworthiness. It mandates monitoring and corrective actions to prevent potential engine stalls and turbine failures.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2024-0026

Jan 24, 2024

Engine — High Pressure Turbine — Rotor Interstage Seal — Replacement

EASA Airworthiness Directive 2024-0026 is an airworthiness directive addressing the replacement of the High Pressure Turbine Rotor Interstage Seal on CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. The directive targets specific affected parts identified by part number 2466M68P02 and certain serial numbers. It mandates replacement of these parts to ensure continued safe operation of the engines.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2023-0108

May 26, 2023

Engine – Forward Outer Seal, High Pressure Compressor Stages 6-10 Compressor Rotor Spools and High Pressure Turbine Rotor Stage 1 Disks – Replacement

EASA Airworthiness Directive 2023-0108 is issued for CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. It addresses the replacement of forward outer seals, high pressure compressor stages 6-10 compressor rotor spools, and high pressure turbine rotor stage 1 disks due to potential manufacturing defects. This directive mandates corrective actions to ensure continued airworthiness and prevent engine part failures.

Airworthiness DirectiveSuperseded
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2022-0009R1

Jul 19, 2022

Engine — High Pressure Turbine Rotor Stage 1 Blade — Inspection

EASA Airworthiness Directive 2022-0009R1 is an updated safety directive addressing inspection requirements for high pressure turbine rotor stage 1 blades on CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. The directive mandates repetitive borescope inspections of specific turbine blades to detect cracks and prevent potential in-flight engine failures. It applies to multiple LEAP-1A engine variants and specifies affected part numbers for inspection.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2022-0139

Jul 7, 2022

Engine — High Pressure Turbine Nozzle Assembly and Stator Stationary Seal — Inspection

EASA Airworthiness Directive 2022-0139 is an official regulatory document addressing the inspection of the high pressure turbine nozzle assembly and stator stationary seal on CFM International LEAP-1A engines. This directive applies specifically to various LEAP-1A engine models installed on Airbus A319, A320, and A321 aircraft. It mandates a one-time inspection to detect potential damage caused by non-synchronous vibrations that could affect engine safety and performance.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2022-0113

Jun 17, 2022

Engine — Stages 6-10 Compressor Rotor Spools and High Pressure Turbine Rotor Stage 1 Disks — Replacement

EASA Airworthiness Directive 2022-0113 is an airworthiness directive addressing CFM International LEAP-1A engines installed on certain Airbus A319, A320, and A321 aircraft. It mandates the replacement of specific compressor rotor spools (Stages 6-10) and high pressure turbine rotor stage 1 disks identified as affected parts due to potential manufacturing defects. The directive aims to ensure continued airworthiness and prevent engine part failure.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2022-0007

Jan 19, 2022

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Implementation

EASA Airworthiness Directive 2022-0007 is an airworthiness directive addressing the LEAP-1A series engines manufactured by CFM International, installed on Airbus A319, A320, and A321 aircraft. It mandates compliance with updated airworthiness limitations and maintenance checks as specified in the LEAP-1A Engine Shop Manual Chapter 05 and related service bulletins. The directive applies to various LEAP-1A engine models and specific life-limited parts identified by part and serial numbers.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2021-0097

Mar 31, 2021

Engine — High Pressure Turbine Case — Replacement

EASA Airworthiness Directive 2021-0097 is an airworthiness directive addressing certain CFM International LEAP-1A engines installed on Airbus A319, A320, and A321 aircraft. It mandates the replacement of specific High Pressure Turbine (HPT) cases with identified defective port castings to prevent potential failure. The directive applies to multiple LEAP-1A engine variants and aims to ensure continued safe operation by removing affected parts from service.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321

EASA AD 2020-0135

Jun 15, 2020

Engine — High Pressure Turbine Rotor Stage 2 Disc — Inspection

EASA Airworthiness Directive 2020-0135 is an airworthiness directive addressing the inspection and replacement of high pressure turbine rotor stage 2 discs on CFM International LEAP-1A engines. This directive applies to various LEAP-1A engine models installed on Airbus A319, A320, and A321 aircraft. It mandates inspection and replacement of specific affected turbine discs to ensure continued airworthiness.

Airworthiness Directive
  • CFM International LEAP-1A
  • CFM International LEAP-1C
  • Airbus A319
  • Airbus A320
  • Airbus A321